When my family moved into the house that my parents still live in, there was an old greenhouse in the backyard with lots of broken window panes. Little by little, my parents took it apart and expanded our lawn.
The biggest treasure in the greenhouse was the stash of clay flower pots. Hundreds of them, I think.
We put a sign on the side of the road advertising the pots, sold a bunch of them, and then used the proceeds to supplement our old television--which was so sad that when our house was broken into twice, the burglars didn't bother to take it--with a small 14" black and white.